- Title
- Role of titanium dioxide in enhancing the performance of the alkaline manganese dioxide cathode
- Creator
- Bailey, Mark R.; Denman, John A.; King, Bruce V.; Donne, Scott W.
- Relation
- Journal of the Electrochemical Society Vol. 159, Issue 2, p. A158-A165
- Relation
- http://jes.ecsdl.org/content/159/2/A158.abstract
- Publisher
- Electrochemical Society
- Resource Type
- journal article
- Date
- 2012
- Description
- In this work the role of TiO2 in improving cathode performance has been investigated through the use of electrode imaging, porosity changes, electrochemical characterisation and changes in the chemical composition of constituent γ-MnO2 particles. Time-of-flight secondary ion mass spectrometry studies revealed that TiO2 is mobile in the electrolyte and associates itself with the porous γ-MnO2 surface. This association gives rise to improved electrode performance by allowing electron/proton pairs to more easily (de)intercalate into the MnO2 structure. Depth profiling confirmed that upon cycling surface TiO2 becomes incorporated into the bulk γ-MnO2 structure inhibiting proton diffusion.
- Subject
- titanium dioxide; TiO2; alkaline manganese dioxide cathode
- Identifier
- http://hdl.handle.net/1959.13/1054999
- Identifier
- uon:15823
- Identifier
- ISSN:0013-4651
- Rights
- © The Electrochemical Society, Inc. 2012. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in Journal of the Electrochemical Society, Vol. 159, No. 2, pp. A158-A165.
- Language
- eng
- Full Text
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